SOLUTION: A real estate agency wishes to double the size of its ad area in a telephone
directory by adding the same amount of length and width of the current ad.
The current ad is 4 cm wid
Algebra.Com
Question 129014: A real estate agency wishes to double the size of its ad area in a telephone
directory by adding the same amount of length and width of the current ad.
The current ad is 4 cm wide by 6 cm long. What will be the dimensions of the new
ad.
Answer by checkley71(8403) (Show Source): You can put this solution on YOUR website!
AREA=L*W
AREA=4*6=24 CM^2
TO DOUBLE THE SIZE OF THE ADD YOU NEED TO ADD 2X TO EACH DIMENSION.
(4+2X)(6+2X)=2*24
24+20X+4X^2=48
4X^2+20X+24-48=0
4X^2+20X-24=0
4(X^2+5-6)=0
4(X+6)(X-1)=0
X-1=0
X=1 THE ANSWER FOR THE INCREASED WIDTH & LENGTH OF THE AD.
WIDTH=4+(2*1)=4+2=6
LENGTH=6+2*1)=6+2=8
PROOF:
6*8=2*24
48=48
RELATED QUESTIONS
A billboard is 7 meters long and 5 meters high. An advertiser wishes to increase its... (answered by piglet162431,JWG)
A telephone directory has 743 pages and an average of 380 entries on each page. Find and... (answered by Boreal)
A real estate agency has fixed monthly costs associated with rent, staff salaries,... (answered by stanbon)
Joe's garden is 6m x4m. He wishes to double the area by increasing its length and width... (answered by richwmiller)
By adding the same amount to its length and its width, a developer increased the area of... (answered by checkley77)
A sponsor for the school yearbook has asked that the length and width of a photo in their (answered by stanbon,vleith)
There is a photograph in an ad and you have to increase the length and width of the... (answered by jorel1380)
A restaurant has a weekly ad in a local newspaper that is 2 inches wide and 4 inches high (answered by macston)
The length and width of an 8cm X 12cm photograph are increased by the same amount in... (answered by josmiceli)